130100981 has 2 divisors, whose sum is σ = 130100982. Its totient is φ = 130100980.

The previous prime is 130100963. The next prime is 130101053. The reversal of 130100981 is 189001031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100180081 + 29920900 = 10009^2 + 5470^2 .

It is an emirp because it is prime and its reverse (189001031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130100981 is a prime.

It is a super-2 number, since 2×130100981² = 33852530514324722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130100911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65050490 + 65050491.

It is an arithmetic number, because the mean of its divisors is an integer number (65050491).

Almost surely, 2^130100981 is an apocalyptic number.

It is an amenable number.

130100981 is a deficient number, since it is larger than the sum of its proper divisors (1).

130100981 is an equidigital number, since it uses as much as digits as its factorization.

130100981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 130100981 is about 11406.1817011654. The cubic root of 130100981 is about 506.7108344364.

The spelling of 130100981 in words is "one hundred thirty million, one hundred thousand, nine hundred eighty-one".